TI C/C++ Compiler

Forum Post: RE: Which option creates __TI_GNU_ATTRIBUTE_SUPPORT__ as TRUE?

Pashan None — Thu, 20 Jun 2013 13:22:00 GMT

Hello George,

I am using Version 4.9.7 of ARM Compiler.

Thank you.
Regards
Pashan

Forum Post: RE: error #20: identifier is undefined

stevenh — Thu, 20 Jun 2013 13:18:00 GMT

Thanks.

Forum Post: Clarification with User-Defined C I/O Driver

durga temp — Thu, 20 Jun 2013 12:24:00 GMT

Hi,

Setup:
OMAPL138 (SYSBIOS 6.34.02.18 is running on both ARM and DSP). This is on DSP.

I have created a user defined C IO driver as shown below.

status = add_device("device",
      _MSA,
      device_open,
      device_close,
      device_read,
      device_write,
      device_lseek,
      device_unlink,
      device_rename);

This is working as expected i.e. if I do fopen("device:foo.txt") the function device_open gets called.

Now if JTAG is connected and I give fopen("foo.txt"), it checks the debug folder and returns NULL if file is not there.

But if JTAG is not connected and I try to run the code using an AIS file, fopen("foo.txt") returns a valid pointer and further fgets gives me whatever data is in CIO buffer i.e. previous "device:" data. If CIO buffer is empty, fgets retuns a valid pointer but the string length is zero.

Is this expected behaviour? Should not fopen("foo.txt") return NULL?

thanks, Durga

Forum Post: RE: How can I link an asm function to other code section?

Philip Hertweck — Thu, 20 Jun 2013 05:18:00 GMT

Hello.

Thank you.

I have found the problem. I had forgotten the spaces before the .sect directive.

Best regards,

Philip Hertweck

Forum Post: RE: Arm Neon Intrinsic optimization Support in CCS

Moorthi Jayaraman — Thu, 20 Jun 2013 04:48:00 GMT

George,

I am using the CCS Version: 5.2.0.00069 and what are the correct Disassembler configuration to get the neon assembly code in Disassembler?...

Thanks & Regards,

J.Moorthi

Forum Post: RE: Ordered library linking

Anton Kachalov — Thu, 20 Jun 2013 00:42:00 GMT

Thank you, George.

I'll try this.

Forum Post: RE: Semaphores issue

MaciejKucia — Wed, 19 Jun 2013 19:46:00 GMT

Do you need threading?

Regards,
Maciej

Forum Post: RE: Is there a complex.h float library for the c55?

Archaeologist — Wed, 19 Jun 2013 19:10:00 GMT

I'm sorry, supporting C99-style complex types would require built-in compiler support, and the C55x compiler does not support them.

Forum Post: RE: Issues with float initialization

Jeff Bierman — Wed, 19 Jun 2013 18:29:00 GMT

I think I resolved the problem. Upon recompiling from scratch. I was getting a warning that my .rodata section was out of range of STATIC_BASE. Thanks for the response and sorry for your time.

Forum Post: RE: DSP c6657 CCS 5.2

Archaeologist — Wed, 19 Jun 2013 18:17:00 GMT

Relocation overflow should be considered an extremely serious problem for a C program.

Start with http://processors.wiki.ti.com/index.php/Compiler/diagnostic_messages/17003

You need to either use large memory model when compiling the project, or declare those variables far.

Forum Post: RE: How to do changes in library rtssrc.zip?

George Mock — Wed, 19 Jun 2013 18:03:00 GMT

[quote user="Tushar Barhate1"]let me know any reference document or procedure to create constant table entry in assembly?[/quote]

I'm not aware of any such document. I recommend you mimic how the compiler does it. Normally, compiler generated assembly files are not kept after a build. But, with the option --src_interlist, the assembly files remain, and compiler generated comments are added to help you understand it. Write some simple C functions that use constants. Then use --src_interlist to see the assembly code.

Thanks and regards,

-George

Forum Post: RE: error #1055: class member designated by a using-declaration must be visible in a direct base class

HolgerG — Wed, 19 Jun 2013 11:03:00 GMT

Thanks for the information.

Do I have a chance to get something like a test version of the compiler development branch? I fear not. Any idea for a workaround?

What are the release plans for the next development version of the compiler?

I plan to use this mathematical "Eigen" library for upcoming projects and I prefer to keep on TI products. I do not want to hesitate you but make clear what the situation is. I really hope there is a solution in the very near future.

Thanks again for your quick response "Archaeologist"

Regards,

Holger

Forum Post: RE: Enabling Assembler macro expansion

Murali Krishna K V — Tue, 18 Jun 2013 23:52:00 GMT

Thanks George.

It works !!

Forum Post: RE: #warning doesnt work with tms470 v5

George Mock — Tue, 18 Jun 2013 18:11:00 GMT

The TI compilers support many GCC extensions, including the deprecated function attribute. You have to build with the switch --gcc. Please see this wiki page for the details.

Thanks and regards,

-George

Forum Post: RE: How to include tables in the binary?

Archaeologist — Tue, 18 Jun 2013 16:32:00 GMT

It probably depends on how you intend to use the tables, but the first thing to try is a const array:

const int twiddle[] = { 0, 1, 2, 3 };

Forum Post: RE: printf problems when casting to unsigned long

Archaeologist — Tue, 18 Jun 2013 16:30:00 GMT

I assume your customer is using COFF mode. In COFF, the type "long" is 40 bits, and is thus 10 hex characters. The field width specifier in the printf format string is a minimum field width, not a maximum. Therefore, this is the output I would expect. If the customer requires 32-bit "long" type, use EABI mode. New projects should use EABI mode if possible.

Forum Post: RE: Fatal error generated by compiler

BrandyJ — Tue, 18 Jun 2013 12:33:00 GMT

Ok. Thanks for now!

Forum Post: RE: Not building rtstesla_le_elf.lib

George Mock — Mon, 17 Jun 2013 20:01:00 GMT

Please consider the possiblities listed here.

-George

Forum Post: RE: rtstesla_le_elf.lib not found

George Mock — Mon, 17 Jun 2013 19:30:00 GMT

Please consider all the possibilities listed here.

Thanks and regards,

-George

Forum Post: RE: Is it possible to define a variable (in C) at a particular address?

George Mock — Mon, 17 Jun 2013 18:56:00 GMT

We who watch this forum lack expertise in working with peripherals like CAN. Most TI devices have a suite of software available (such as controlSUITE for C28x) that includes examples for working with the peripherals. That's more likely to work for you.

Thanks and regards,

-George